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911R's rear diffuser

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Old 10-07-2016, 04:19 PM
  #46  
rm21
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Will do. It is backordered with no ETA at this point.
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Old 10-07-2016, 07:34 PM
  #47  
unotaz
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Originally Posted by rm21
I ordered one and am going to try it. Given the relatively low price, it is worth some experimentation. I'll run it with the stock wing and with the Crawford wing on my GT3 and post my impressions. I already have the RS/cup splitter on the front of the car to balance the aero with the Crawford wing.
I would be curious with what you find on your GT3. When I drove the R press car in Germany a few months back, it felt a little bit unstable at above 260km/h on the autobahn. I don't know how much downforce that little diffuser generates, but it sure doesn't feel like much at all.
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Old 10-07-2016, 08:02 PM
  #48  
rodH
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Originally Posted by rm21
Will do. It is backordered with no ETA at this point.
Not surprised. All the units are probably going on production vehicles at this point
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Old 10-07-2016, 10:16 PM
  #49  
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For those that wonders, the R diffuser will bolt right onto a GT3RS with no modifications, all both holes are the same and no clearance issue.
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Old 10-08-2016, 01:30 AM
  #50  
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Whoopsy are you sure? I look like the R diffuser doesn't have a cutout for the cooler like the RS.
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Old 10-08-2016, 10:19 AM
  #51  
<3mph
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Same cutout on RS is on GT3 too, here's another picture:



Does anyone have a good photo of an actual R? Maybe it's got the same cutout?
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Old 10-08-2016, 11:13 PM
  #52  
Chris Ferrell
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From what I've seen, it doesn't look like that R has that opening. I'm assuming that's the customization Suncoast mentions in the product description. The pic is an example of under an R from instagram.

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Old 10-09-2016, 12:00 PM
  #53  
Whoopsy
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Here it is.
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Old 10-09-2016, 12:02 PM
  #54  
Whoopsy
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Originally Posted by Loess

Whoopsy are you sure? I look like the R diffuser doesn't have a cutout for the cooler like the RS.
It's what my shop foreman said when he was doing the PDI on the R.
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Old 10-09-2016, 02:37 PM
  #55  
PhilT3 (PT3)
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Originally Posted by rm21
Will do. It is backordered with no ETA at this point.
VERY interested!!!!

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Old 10-10-2016, 04:57 AM
  #56  
batmanm3
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Originally Posted by Whoopsy
It's what my shop foreman said when he was doing the PDI on the R.
Oooo...I bet I saw your car up on the hoist when I took delivery a couple weeks ago...

I had a good look at the diffuser...

Does anyone have any hard data as to how much downforce the diffuser would add? I ask because my understanding is that you need a fairly large tunnel for the diffuser to work effectively.
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Old 10-10-2016, 01:33 PM
  #57  
Whoopsy
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Originally Posted by batmanm3
Oooo...I bet I saw your car up on the hoist when I took delivery a couple weeks ago...

I had a good look at the diffuser...

Does anyone have any hard data as to how much downforce the diffuser would add? I ask because my understanding is that you need a fairly large tunnel for the diffuser to work effectively.

It's not my car.

The downforce added is shall we say minimal. I know what AP said publicly, but privately when I talked to Weissach people they all said the car is quite unstable at high speed. The R is not designed to be a 300km/hr autobahn cruiser that's for sure.
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Old 10-10-2016, 03:21 PM
  #58  
<3mph
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That might be the most honest and helpful assessment--thanks
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Old 10-10-2016, 05:48 PM
  #59  
usctrojanGT3
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Looks like 4 bolt-on pieces to me. If someone measures them, I'm sure any decent shop can fab those.
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Old 10-12-2016, 04:15 AM
  #60  
UAEGT3
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installation looks easy. clearance is not an issue. But would like to know if it will lead to any imbalance on a GT3.

http://www.autoevolution.com/news/20...01.html#agal_8

look at above link and pic. The new GT3RS or GT2RS God knows what it is seems to have a similar diffuser as the 911R


thanks
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